CVE-2025-40039: linux kernel from 5.15.145 (inclusive), before 5.16 (exclusive), from 6.1.71 (inclusive), before 6.2 (exclusive), from…

Affected technology

linux kernel · from 5.15.145 (inclusive), before 5.16 (exclusive)
linux

linux kernel · from 6.1.71 (inclusive), before 6.2 (exclusive)
linux

linux kernel · from 6.3 (inclusive), before 6.6.123 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.53 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.17.3 (exclusive)
linux

Linux · a4348710a7267705b75692dc1a000920481d1d92 to before 69674b029002b1d90b655f014bdf64f404efa54d, b685757c7b08d5073046fb379be965fd6c06aafc to before 6b615a8fb3af0baf8126cde3d4fee97d57222ffc, b685757c7b08d5073046fb379be965fd6c06aafc to before 5cc679ba0f4505936124cd4179ba66bb0a4bd9f3, b685757c7b08d5073046fb379be965fd6c06aafc to before 6bd7e0e55dcea2cf0d391bbc21c2eb069b4be3e1, b685757c7b08d5073046fb379be965fd6c06aafc to before 305853cce379407090a73b38c5de5ba748893aee, 1f485b54d04a920723984062c912174330a05178, 052b41ef2abe274f068e892aee81406f11bd1f3a, 5.15.145 to before 5.16
Linux

Linux · 6.3
Linux

Component: Not specified by the source
File: fs/smb/server/mgmt/user_session.c

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high. NVD’s CVSS 3.1 assessment (base score 4.7/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.